USE OF EASY CUTTING STRUCTURAL STEEL

Easy cutting steel structure is referred to as easy cutting steel, containing a small amount of cutting elements, good machinability of steel is.

1. Y12 parathion compound low carbon free cutting steel, free cutting steel is the existing phosphorus content in a steel most. Commonly used in the manufacture of mechanical performance requirements of various machines and instrument parts, such as bolts, nut, pin, shaft and tube fitting.

2. Y12Pb containing free cutting steel, cutting processing is good, there is no performance on the direction, and has a higher mechanical properties, commonly used in the manufacture of more important mechanical parts, precision instruments, such as parts.

3. Y15 composite low silicon high sulfur free cutting steel, developed by China is a successful steel. The machinability of steel is higher than that of Y12, commonly used in the manufacture of standard parts is not important, such as bolts, nuts, pipe joints, spring seat, etc..

4. Y15Pb with Y12Pb, the machinability is better.

5. Y20 low sulfur compound free cutting steel, machinability is better than 20 steel and lower than 12 steel, can be carburizing treatment, commonly used in the manufacture of surface hardness, high toughness of the heart of the instrument, meter, shaft type wear-resistant parts.

6. Y30 low sulfur compound free cutting steel, high mechanical properties, machinability is also appropriate to improve the standard parts can be manufactured with high strength requirements.

7. Y35 with Y30 steel, can be quenched and tempered.

8. Y40Mn high sulfur carbon free cutting steel, high strength, hardness and good machinability, suitable for processing high rigidity of the machine parts, such as machine screws, light bars, spline shaft, rack, etc..

9. Y45Ca Ca-S free cutting steel, cutting is not only good, but after the heat treatment has good mechanical properties, suitable for the manufacture of machine parts is important, such as machine tool gear shaft, spline shaft, transmission shaft of tractor.